build(deps-dev): bump httpx2 from 2.2.0 to 2.3.0

[dependabot]

Bumps httpx2 from 2.2.0 to 2.3.0.

Release notes

Sourced from httpx2's releases.

v2.3.0

What's Changed

• Allow default_encoding callable to return None by @​Kludex in pydantic/httpx2#951
• perf: use memoryview in write() to avoid copies by @​mbeijen in pydantic/httpx2#954
• perf: use anyio fast_acquire for Lock and Semaphore by @​mbeijen in pydantic/httpx2#970
• Make zstd import optional on Python 3.14 by @​Kludex in pydantic/httpx2#1000
• Switch from certifi to truststore for default SSL verification by @​Kludex in pydantic/httpx2#209
• Switch httpcore2 from certifi to truststore for default SSL verification by @​Kludex in pydantic/httpx2#1002
• Store elapsed time on stream wrapper to avoid reference cycles by @​mbeijen in pydantic/httpx2#948
• perf: Rewrite _assign_requests_to_connections as a single-pass loop by @​mbeijen in pydantic/httpx2#974
• create_ssl_context: raise when verify is a str and cert is provided by @​mbeijen in pydantic/httpx2#990

New Contributors

• @​hugovk made their first contribution in pydantic/httpx2#960
• @​cclauss made their first contribution in pydantic/httpx2#972
• @​lundberg made their first contribution in pydantic/httpx2#978
• @​angryfoxx made their first contribution in pydantic/httpx2#977

Full Changelog: pydantic/httpx2@v2.2.0...v2.3.0

Changelog

Sourced from httpx2's changelog.

2.3.0 (June 1st, 2026)

Changed

• Use truststore instead of certifi for default SSL verification, loading the operating system's trust store. (#209)

Fixed

• Raise when verify is a string path and a client-side cert is also provided to create_ssl_context. (#990)
• Allow a default_encoding callable to return None. (#951)
• Make the zstd import optional on Python 3.14. (#1000)
• Store elapsed time on the stream wrapper to avoid reference cycles. (#948)

Commits

• 04f3804 Version 2.3.0 (#1006)
• 91af735 create_ssl_context: raise when verify is a str and cert is provided (#990)
• 9866dec Require uv-dynamic-versioning>=0.8.0 for fallback-version support (#1005)
• 65e350e Correct pragma: nocover to pragma: no cover and tidy docstrings (#1004)
• 425f23b Add fallback version for builds without git (#1003)
• de30f39 Store elapsed time on stream wrapper to avoid reference cycles (#948)
• 4fe6b77 Switch from certifi to truststore for default SSL verification (#209)
• 0ba70ab Make zstd import optional on Python 3.14 (#1000)
• e506309 Exclude TYPE_CHECKING blocks via coverage exclude_also (#988)
• 780cb32 Enable C4 and PERF ruff rule sets (#981)
• Additional commits viewable in compare view

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[github-actions]

Codecov Results 📊

✅ 88776 passed | ⏭️ 6025 skipped | Total: 94801 | Pass Rate: 93.64% | Execution Time: 295m 46s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📈 +642
Passed Tests	📈 +636
Failed Tests	—
Skipped Tests	📈 +6

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 2355 uncovered lines.
✅ Project coverage is 89.9%. Comparing base (base) to head (head).

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    89.90%    89.90%        —%
==========================================
  Files          192       192         —
  Lines        23321     23321         —
  Branches      8020      8020         —
==========================================
+ Hits         20966     20966         —
- Misses        2355      2355         —
- Partials      1327      1327         —

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